Sand Casting: Sand Mould, Sand Properties– Patterns: Types, Materials, allowances –Types of Melting furnaces, Special casting processes: Shell - investment -Ceramic mould -Pressure die casting - Centrifugal Casting – Fettling -Defects in Sand casting. Gas welding -Types -Flame characteristics - Manual metal arc welding -Gas Tungsten arc welding - Gas metal arc welding – Types of Special Welding Processes – Electron Beam welding and Friction Stir Welding – Brazing, soldering - Weld defects - Applications.
Mechanical working of Metals- Plastic deformation theory – Principles - Hot working and cold working of metals: Forging-Types - Operations, rolling – Flat and Shape rolling, Extrusion – Direct & Indirect, Drawing processes – Tube, Wire - Defects. Mechanics of chip formation - single point cutting tool - Effect of tool geometry- forces in machining - Types of chip – orthogonal, oblique metal cutting - thermal aspects - cutting tool materials - tool wear - tool life - surface finish - and Machinability.
Need for NDT- Introduction to Powder metallurgy – applications. Surface modification – methods- CVD-PVD. Numerical Control (NC) machine tools — CNC types, constructional details, special features, machining centre, part programming fundamentals CNC - manual part programming.
Linear Measuring Instruments – Vernier caliper, Micrometer, Vernier height gauge, Depth Micrometer, bore gauge, telescoping gauge, Comparators – Working and advantages; Opto-mechanical measurements using measuring microscope and Profile projector - Angular measuring instruments – Bevel protractor, Angle gauges, Sine bar, Autocollimator, Angle dekkor.
Basic principles of Geometric dimensioning and tolerancing (GD&T) -Thread measurement -Gear measurement -Surface finish Measurement - Principles and Methods of Straightness - Applications. Laser Interferometers - Basic concept of CMM -Types of CMM -Constructional features -Applications -Basic concepts of Machine Vision System.
Reference Book:
Kalpakjian. S, ―Manufacturing Engineering and Technology‖, 7th Edition, Pearson Education India Edition, 2018
Text Book:
HajraChoudhury, S.K., and HajraChoudhury, A.K., “Elements of Workshop Technologyâ€, Volume I and II, Media Promoters and Publishers Private Limited, Mumbai, 2011.
